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Volume 17, Number 10—October 2011
Dispatch

Outbreak of West Nile Virus Infection in Greece, 2010

Kostas DanisComments to Author , Anna Papa, George Theocharopoulos, Georgios Dougas, Maria Athanasiou, Marios Detsis, Agoritsa Baka, Theodoros Lytras, Kassiani Mellou, Stefanos Bonovas, and Takis Panagiotopoulos
Author affiliations: Hellenic Centre for Disease Control and Prevention, Athens, Greece (K. Danis, G. Theocharopoulos, G. Dougas, M. Athanasiou, M. Detsis, A. Baka, T. Lytras, K. Mellou, S. Bonovas, T. Panagiotopoulos); Aristotle University of Thessaloniki, Thessaloniki, Greece (A. Papa); National School of Public Health, Athens (T. Panagiotopoulos)

Main Article

Table 1

Characteristics of 197 patients with West Nile neuroinvasive disease. Greece, July–October 2010*

Characteristic No. patients Incidence per 100,000 population Risk ratio (95% CI)
Age group, y
<20 4 0.18 Reference
20–29 3 0.20 1.08 (0.24–4.84)
30–39 6 0.34 1.87 (0.53–6.63)
40–49 9 0.55 3.03 (0.93–9.82)
50–59 18 1.27 6.93 (2.35–20.49)
60–69 29 2.44 13.31 (4.68–37.84)
70–79 85 8.01 43.74 (16.05–119.2)
>80
 43
 9.63
 52.62 (18.89–146.6)
Sex
F 88 1.59 Reference
M
 109
 1.97
 1.26 (0.95–1.67)
Place of residence
Urban 110 1.38 Reference
Rural
 87
 2.92
 2.12 (1.60–2.80)
Districts in Central Macedonia
Chalkidiki 4 3.99 0.76 (0.28– 2.09)
Thessaloniki 60 5.27 Reference
Pieria 9 7.02 1.33 (0.66–2.69)
Serres 21 11.15 2.12 (1.29–3.48)
Kilkis 12 13.92 2.64 (1.42–4.91)
Imathia 39 27.06 5.14 (3.43–7.69)
Pella 41 28.26 5.37 (3.61–7.98)
Total
 186
 15.00
 NA
Other districts (region)
Etoloakarnania (western Greece) 1 0.46 0.09 (0.01–0.63)
Kozani (Western Macedonia) 1 0.65 0.12 (0.02–0.89)
Kavala (Eastern Macedonia) 1 0.71 0.14 (0.02–0.98)
Larissa (Thessalia)
 8
 2.80
 0.53 (0.25–1.11)
Total in Greece 197 1.76 NA

*Incidence rates were calculated by using 2008 mid-year population estimates of the Hellenic Statistical Authority as the denominator. CI, confidence interval; NA, not applicable.

Main Article

Page created: September 26, 2011
Page updated: September 26, 2011
Page reviewed: September 26, 2011
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